The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A267711 Numbers k such that k mod 3 = k mod 5. 2
 0, 1, 2, 15, 16, 17, 30, 31, 32, 45, 46, 47, 60, 61, 62, 75, 76, 77, 90, 91, 92, 105, 106, 107, 120, 121, 122, 135, 136, 137, 150, 151, 152, 165, 166, 167, 180, 181, 182, 195, 196, 197, 210, 211, 212, 225, 226, 227, 240, 241, 242, 255, 256, 257, 270, 271, 272, 285, 286 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Periodic differences between the consecutive terms (1,1,13,1,1,13,1,1,13,1,1...). LINKS Colin Barker, Table of n, a(n) for n = 1..1000 Index entries for linear recurrences with constant coefficients, signature (1,0,1,-1). FORMULA a(n) = (1/3)*(15*n - 12*cos((2*Pi*n)/3) + 4*sqrt(3)*sin((2*Pi*n)/3) - 27). G.f.: x^2*(13*x^2+x+1) / ((x-1)^2*(x^2+x+1)). a(n) = a(n-1) + a(n-3) - a(n-4) for n > 4. - Colin Barker, Jan 28 2016 MATHEMATICA Select[ Range[0, 10000], (Mod[#, 3] == Mod[#, 5]) &] PROG (PARI) lista(nn) = for(n=0, nn, if(n%3 == n%5, print1(n, ", "))); \\ Altug Alkan, Jan 19 2016 (PARI) concat(0, Vec(x^2*(1+x+13*x^2)/((1-x)^2*(1+x+x^2)) + O(x^100))) \\ Colin Barker, Jan 28 2016 CROSSREFS Cf. A267540. Sequence in context: A322149 A163480 A037312 * A108472 A039771 A032934 Adjacent sequences: A267708 A267709 A267710 * A267712 A267713 A267714 KEYWORD nonn,easy AUTHOR Mikk Heidemaa, Jan 19 2016 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 1 02:07 EDT 2023. Contains 365812 sequences. (Running on oeis4.)